Begin by preparing your vegetables. Peel the potatoes and dice them. Next, dice the onion and chop the parsley. Put the potatoes in a pot with enough water to cover them completely. Cook for about 10 minutes or until tender. Drain them and set them aside to cool down. Next you want to fry the bacon in a deep skilled. Allow to cook until brown and crispy on both sides and remove them from the pan. Set them aside with the potatoes. Next, you want to add the onions to the bacon grease and cook them until they are browned. Add the water, salt, pepper, vinegar, and sugar to the pan and bring to a boil. Now you can add the potatoes and the parsley. Crumble half of the bacon in the pan and continue heating for about 5 minutes. Take your salad and put it in a serving dish. Crumble the remaining bacon over the top and serve hot.